Optimum use of the measuring range

High-resolution measuring range

For the current transducers up to 55 A AC/DC, the upper and lower limits of the measuring range can be adjusted infinitely with the software. These limits define a specific measuring window (window function) that is mapped over the entire output signal range by the device.

For infinite current acquisition we offer MCR-S-...-DCI current transducers in two device types:

MCR-S-1-5-UI-DCI for current measurement up to 11 A: in addition to the standardized input signals of 1 and 5 A, the measuring range can be adjusted infinitely: starting range of 0 to 7.5 A and final range of 0.2 to 11 A.

MCR-S-10-50-UI-DCI for current measurement up to 55 A AC/DC: if you want to measure high motor currents, for example, adjust the measuring range accordingly: starting range of 0 to 37.5 A and final range of 9.5 to 55 A.

Lossless true r.m.s. value measurement with a Hall sensor

True r.m.s. value acquisition with a Hall sensor (TRMS)

The current transducers up to 55 A acquire the true r.m.s. value using a Hall sensor and therefore do not rely on form factors.

This means that the conductor that is to be measured does not have to be interrupted, it is simply led through the device. This offers many advantages:

Replacement for expensive shunt current measurement which is prone to losses.

If there is sufficient insulation, the measuring circuit and electronics used do not have to be safely isolated.

No additional contact points that can result in contact resistance.

The current is forwarded accurately, as there is no direct access to the measuring circuit.

In addition, there is the option of acquiring the current using the arithmetic average value. In this case direct currents are measured or DC components are filtered out from a pulsating current.

In addition, the arithmetic average value enables bipolar direct currents to be made available at the output in the form of standard analog signals.

Limit value alarm

In addition to the analog output, current transducers up to 55 A AC/DC offer a switching output. Either with a relay or a transistor. The switching output can be connected to the following operating behavior:

Operating current or closed circuit current principle

Switching triggered in the event of threshold value underrange

Switching triggered in the event of threshold value overrange

Reliable protection

The current transducers up to 55 A have 3-way electrical isolation according to EN 61010 between the input, output, and power supply. This increases operational reliability in the event of disturbances in your system.